Adding structure for wait action.
Adding package to modify the HOSTNAME environment variable and save it in the bashrc under STRANDS_HOSTNAME in a ros friendly way
Update README.md

Fixed type in Readme.
Changed regular expression for modifying the HOSTNAME env var.
Merge branch 'hydro-devel' of https://github.com/RaresAmbrus/strands_utils into hydro-devel
Merge pull request #80 from RaresAmbrus/hydro-devel

Added package to modify the HOSTNAME env var and save it in the bashrc under STRANDS_HOSTNAME in a ros friendly way
Added wait node action with service to preempt whatever wait is in progress.
Exporting env var STRANDS_HOSTNAME
Merge pull request #81 from hawesie/hydro-devel

Added a node to implement a wait action
Made table detection faster by cutting of the pointcloud
Changed parameters to work with extraction from cross section, in general working quite well
Merge pull request #83 from nilsbore/hydro-devel

Add option to extract primitives in cross-section
Added services for running the primitive extraction instead of messages, also outputs the indices of the primitives in the supplied pointcloud
Fixed preemption.
Merge pull request #84 from hawesie/hydro-devel

Fixed preemption.
Added checking script for door with outcome publishing.
Added handling of preemption.
Added speaking of result.
Added launch file and changed text slightly.
Merge pull request #86 from hawesie/hydro-devel

Node for reporting the results of another action server